Application of Magnetic Gradiometers to Control Magnetic Field of a Moving Object

Волковицкий, А. К.; Karshakov, E. V.; Tkhorenko, M. Yu.; Pavlov, B. V.

doi:10.1134/s0005117920020113

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…Перспективную навигацию морского подвижного объекта можно осуществлять на основе измерений градиента планетарного магнитного поля с использованием показаний бортовых магнитных градиентометров [40]. Понятие сплайн-градиента можно признать основополагающим фактором, определяющим потенциал движения судна при изолинейном плавании с учетом меняющейся геометрической характеристики навигационного поля.…”

Section: обсуждение (Discussion)unclassified

Optimal Spline Trajectory of the Ship Informative Route in the Map-Aided Navigation

Yuyukin

2022

jour

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The task of organizing an informative route as an optimal spline trajectory of a moving object with an assessment of the informativeness of the map-aided navigation standard is completed. From the perspective of the planning approach, an optimal geometric path, passing through pre-determined iconic intermediate points, taking into account the avoidance of navigational hazards as “obstacle spots” has been formed. Within the framework of the strategy of informative planning of the spline path, the actuality of solving the problem of synthesizing the optimal trajectory in two variants is noted: by the methods of B-splines and classical polynomial interpolations as the implementation of the tactics of a mobile object movement in a conflict environment. A comparative characteristic of two alternative algorithms for solving the problem, specifying the advantages and disadvantages of each option, is given. As a demonstration of the practical applicability of the interpolation approach, the spline trajectory of an illustrative example in route of map-aided navigation is designed against the background of a contour map of isolines. Emphasis is placed on the possibility of forming the shape of the navigation isosurface due to the effective use of the curvature of the spline trajectory as a reproductive template for constructing an axonometric projection. A forecast about the trends of the possible use of a separate optimal trajectory of the object movement directly for the construction of the informative field profile of any degree of complexity is made. A hypothesis about the feasibility of practical use of chaotic architecture of spline gradients for effective planning of the optimal trajectory is put forward. The fan of spline gradient vectors with a personal orientation in the direction of the maximum change in the navigation function on each segment of the piecewise polyline of the path in the vessel routing procedure is considered. The issue of ensuring the possibility of making a coordinated decision on the vessel management by personnel due to the automated formation of spline trajectories in real time with synchronous representation of geometric computer support to the watch assistant, which allows us to offer integration of the tasks under consideration into the cloud-based intelligent technology of “augmented reality” is formulated.

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Section: обсуждение (Discussion)unclassified

Optimal Spline Trajectory of the Ship Informative Route in the Map-Aided Navigation

Yuyukin

2022

jour

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“…Equations (3)-(5) are the position differential equation. p = [L; λ; h] is the position information, where L is the latitude, λ is the longitude, and h is the height; Equations (6)- (8) are the velocity differential equations.…”

Section: Basic Equations Of Strapdown Inertial Navigation Systemmentioning

confidence: 99%

“…As the geomagnetic field belongs to weak field signals, it is easy to be interfered with by other factors, especially by the submarine shell. The geomagnetic measurement is usually carried out by a dragging mode, which provides a poor positioning accuracy of several kilometers [ 8 , 9 , 10 ] of the submarine navigation system based on geomagnetic field signals. In addition, the geomagnetic real-time measurement is more troublesome.…”

Section: Introductionmentioning

confidence: 99%

An Aided Navigation Method Based on Strapdown Gravity Gradiometer

Gao

Chang

et al. 2021

Sensors

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The gravity gradient is the second derivative of gravity potential. A gravity gradiometer can measure the small change of gravity at two points, which contains more abundant navigation and positioning information than gravity. In order to solve the problem of passive autonomous, long-voyage, and high-precision navigation and positioning of submarines, an aided navigation method based on strapdown gravity gradiometer is proposed. The unscented Kalman filter framework is used to realize the fusion of inertial navigation and gravity gradient information. The performance of aided navigation is analyzed and evaluated from six aspects: long voyage, measurement update period, measurement noise, database noise, initial error, and inertial navigation system device level. When the parameters are set according to the benchmark parameters and after about 10 h of simulation, the results show that the attitude error, velocity error, and position error of the gravity gradiometer aided navigation system are less than 1 arcmin, 0.1 m/s, and 33 m, respectively.

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Correlation-extreme method based on spline functions as an alternative to satellite navigation

Yuyukin¹

2023

AIP Conference Proceedings

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Application of Magnetic Gradiometers to Control Magnetic Field of a Moving Object

Cited by 3 publications

References 5 publications

Optimal Spline Trajectory of the Ship Informative Route in the Map-Aided Navigation

Optimal Spline Trajectory of the Ship Informative Route in the Map-Aided Navigation

An Aided Navigation Method Based on Strapdown Gravity Gradiometer

Correlation-extreme method based on spline functions as an alternative to satellite navigation

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